IFM Electronic CR0403 Programming Manual page 156

ifm Programming Manual ecomatmobile
ifm function elements
>
J1939_TX_ENH_CYCLIC
= J1939 TX enhanced cyclic
Unit type = function block (FB)
Unit is contained in the library ifm_J1939_NT_Vxxyyzz.LIB
Symbol in CODESYS:
>
Description
J1939_TX_ENH_CYCLIC serves for cyclic transmitting of CAN messages.
Otherwise, the FB corresponds to
► Set the period duration via the parameter PERIOD.
If a period is too short, this could lead to a high bus load!
The bus load can affect the performance of the complete system.
>
Parameters of the inputs
Parameter
ENABLE
CHANNEL
DA
Prio
(optional use of the parameter)
PGN
Len
(optional use of the parameter)
DATA
PERIOD
BasicController (CR0403) Runtime System V03.02
J1939_TX_ENH
(→ page 154).
Data type
BOOL
BYTE
BYTE := 249
BYTE := 3
DWORD
BYTE := 8
ARRAY [0..7] OF BYTE
TIME
156
ifm function elements for the device CR0403
Description
TRUE: execute this function element
FALSE: unit is not executed
> Function block inputs are not active
> Function block outputs are not specified
CAN interface (1...n) depending on the device
DA = Destination Address of the ECU
PGN > 61139: parameter DA is ignored
message priority
permissible values = 0...7
PGN = Parameter Group Number
Permissible = 0...262 143 = 0x00000000...0x0003FFFF
number of the bytes to be transmitted
permissible values = 0...8
data to be sent (1...8 bytes)
period duration
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